4-20 mA Temperature Transmitter
Advantages:
Long-distance transmission: 4-20 mA signals can be transmitted over long distances (up to several kilometers) without significant loss of signal quality.
Simple Integration: The 4-20 mA output is compatible with most control systems and data loggers.
Low power consumption: Requires minimal power and operates over a wide voltage range.
Overview
Key Features:
Input Types: Common temperature sensors used with these transmitters include thermocouples (Type K, J, T, etc.) or resistance temperature detectors (RTDs) (such as PT100, PT1000).
Output: The transmitter produces a 4-20 mA output signal:
4 mA typically corresponds to the minimum temperature range.
20 mA corresponds to the maximum temperature range.
The range between 4 mA and 20 mA is linearly proportional to the temperature measurement.
Applications:
Industrial Process Control: For measuring temperature in various processes like chemical manufacturing, HVAC, power generation, and food processing.
Monitoring and Control: Used in remote monitoring systems and for sending temperature data to control panels, SCADA systems, and data acquisition systems.
Calibration and Testing: Used in calibration setups for temperature sensors in laboratories or factory calibration processes.
